Summit p/n is HUU-1630056 for the Hurst shifter 6speed ball but the shifter shaft has to be threaded to 9/16 x18 threads, But its a PIA get started but can be done, did this mod myself. All info I recieved on the net from Whitey, Again Whitey Thanks for the write-up...should of came from the factory like this, 2 thumbs up